• Partitioning a whole into equal parts
• Specify the whole
• Use a variety of models
• Do not have to be identical shapes, but must have equal measures
• Build on students' informal understanding of sharing and proportionality to develop (USDE).
• Should lead back to proportionality (tape diagrams)

Partitioning in K-5

• 1.G.3
• 2.G.3
  • Representing Half of a Rectangle - Illustrative Mathematics

Partitioning in 6-8

• Area and Surface Area - 6.G.1, 6.G.4
  • Sierpinski's Carpet - Illustrative Mathematics
• Ratio - 6.RP.1
• Geometry - 7.G.1, 7.G.2, 7.G.3, 7.G.4, 7.G.5, 7.G.6
  • Designs - Illustrative Mathematics
• Pythagorean Theorem - 8.G.6, 8.G.7, 8.G.8
  • Circle Sandwich - Illustrative Mathematics

Pattern Block Fractions

• Pattern Block Fractions - lluminations
• Cynthia Lanius' lessons using pattern blocks
  • No Matter What Shape
  • Fun Fractions
  • Drawing Fun Fractions
  • Designer Fractions